how to place psu fo more efficient cooling.......

hi frnds

for a bottom mounted cabby, which way is better to to place the psu.
fan facing upward (sucking air from cabby and blowing out )or fan facing bottom(sucking air from outside and blowing it in)....

or both setups are equal....i read some where that placing the psu fan facing bottom will make psu little more cooler and blows cool air to the mb+gcard....

Blowing it in?? Which psu are you using?

^^ *forums.guru3d.com/showthread.php?t=354472

some moders do ths to make the fan act as exhaust

*www.tomshardware.com/forum/262868-28-facing

The Sorcerer said:
Blowing it in?? Which psu are you using?

sry its was a mistake wht i meant to ask is in the above link

W

from tomshardware link you posted & a good one:

And put ice cubes on incandescent bulbs to prolong their life.

Temperatures are ideal for electronics even if it is too warm to handle. Electronics only get too hot when you touch it and leave skin. This is an argument over trivial single digit degrees when destructive temperatures must exceed hundreds.

Airflow direction does not matter. Just as long as all fans are contributing in the same direction. Just as long as airflow is not restricted by a ribbon cable. Airflow that is more than sufficient means your hand cannot even feel it. One fan in the power supply is more than sufficient airflow for most every computer. A second fan means if the first fan fails, the second fan maintains airflow. Or so that second fan blows air in a hotspot created by a misplaced ribbon cable.

Moving too much air only makes things worse; causing dust problems.

Too many worry only about what they understand. They understand heat; so hype it into an evil equivalent to Saddam. Don't worry about direction or the amount of air. Just make sure air is continuously flowing in one direction - as so slowly that no human hand can detect that airflow. Air moving that slowly is massive cooling.